Before they made these the five default letters to be used in the Wheel of Fortune bonus round, the contestant was allowed to select five consonants and one vowel. The most popular letters were L, N, R, S ,T and E as they are the most frequently occurring letters in the English language. The contestant was also given 15 seconds to solve the puzzle instead of ten seconds, though with three additional consonants and one additional vowel.

The OCD side in me wishes that they would retain the alphabetical order of the five consonants and display then as L N R S T E, which I "auto correct" as "lean rest".